The under construction One Piece theme park set for Tokyo has been given an opening date of 13 March 2015, though the park’s developers are still keeping a lot of the details of what will actually feature close to their chests.

Based around the popular Japanese manga and later anime series, the ¥101m (US$1m, €742,500, £585,000) pirate-themed park will be located at Tokyo Tower – Japan’s second-tallest structure, which opened in 1958.

Known as Tokyo One Piece Tower, visitors to the park will be able to experience rides, attractions and restaurants based on the One Piece world, as well as an original merchandise shop and a line up of live entertainment.

Amusequest – the company behind the attraction – has kept the details of what will actually be featured quiet, with the firm wanting to contain the surprise until the park’s opening.

One Piece, which first debuted in December 1997, follows the adventures of Monkey D. Luffy – a young man whose body gains the properties of rubber after unintentionally eating a Devil Fruit – and his crew of pirates.